ABB S201U-K8 Miniature Circuit Breaker
- 8A
- 1 Pole
- DIN Rail
Quantity
ABB S201U-K8 - 8A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for demanding industrial environments, this 8A miniature circuit breaker provides reliable branch circuit protection. The thermal-magnetic mechanism is specifically calibrated to safeguard motors and transformers. This unit mounts seamlessly into standard DIN rail control panels and enclosures. Facility managers should note that this legacy device is replaced by the updated SU201M-K8 model. Delivering a 10kAIC rating at 240VAC, the K-curve profile prevents nuisance tripping.Specifications
| Brand | ABB |
|---|---|
| Series | S200U |
| Amperage | 8A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | S201 |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Panels, Control Panels |
| Wire Gauge | 18-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | K |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Bell Alarm, Shunt Trip, Busbar System |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | -25C to 55C |
| Construction Features | Current Limiting, Reverse Feed |
Product FAQs
7 answersWhat applications are suitable for the K trip curve on the S201U-K8?
The K trip curve is specifically calibrated for highly inductive loads, such as motors and transformers. It allows for high inrush currents without nuisance tripping while providing fast response times to short circuits.
Is the ABB S201U-K8 approved for branch circuit protection?
Yes. As part of the S200U series, this breaker is UL 489 listed, making it fully approved for branch circuit protection in North American electrical panels and control systems.
What type of DIN rail is required for installing this breaker?
The S201U-K8 mounts directly onto a standard 35mm DIN rail. It includes a quick-fastening mechanism that allows for easy installation and removal from the rail or busbar system.
Can the S201U-K8 be reverse fed?
Yes, ABB S200U series miniature circuit breakers are capable of being reverse fed. You can land your line and load connections on either the top or bottom terminals based on your panel layout.
Is this breaker compatible with ABB busbar systems?
Yes, the bi-directional cylinder-lift terminals on the S201U-K8 are designed to accept both standard wire and ABB PS series busbars simultaneously for streamlined power distribution.
Which auxiliary contacts are compatible with the S201U-K8?
This breaker accepts standard ABB S200U series accessories, including the S2C-H6RU auxiliary contact. These accessories typically mount to the right side of the breaker for remote status monitoring.
Does this miniature circuit breaker have finger-safe terminals?
Yes, the S201U-K8 features IP20-rated finger-safe terminals. This design helps protect panel builders and maintenance personnel from accidental contact with live wiring.
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